2238940

Information

• Patent Grant
• 2238940

• References
• Source

• Patent Number

  2,238,940

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1941
  83 years ago

• CPC

  • C10L1/003 - Marking
  • C07C49/17 - containing hydroxy groups
  • C09B3/02 - Benzathrones
  • C10M171/007 - Coloured or dyes-containing lubricant compositions

• US Classifications

  • 552 - Organic compounds
  • 528 - Synthetic resins or natural rubbers